The-Green-Viper-KindleBook Blurb:

I need your help. Call me.

Ex-intelligence agent James Ryker receives a coded message through a secret drop point, a means of communication known only to him and one other person. The problem is, that person is his ex-boss, Mackie… and he’s already dead.

But the cry for help is real, and it’s a request Ryker can’t refuse.

Travelling to New York alone and without official sanction, Ryker has a single goal in mind, yet even he couldn’t have bargained for the violent world he’s soon embroiled in. Caught in the middle of a spiraling chaos, with the FBI on one side and warring underworld bosses on the other, Ryker must put all of his skills to the test in order to come out on top and keep his word.

In a world full of lies and deceit, loyalty is everything, and it’s time for James Ryker to pay his dues.

Rob Sinclair author image 1About the author:

Rob is the author of the critically acclaimed and bestselling Enemy series and James Ryker series of espionage thrillers. His books have sold over half a million copies to date with many reviewers and readers having likened Rob’s work to authors at the very top of the genre, including Lee Child and Vince Flynn.


Rob began writing in 2009 following a promise to his wife, an avid reader, that he could pen a ‘can’t put down’ thriller. He worked for nearly 13 years for a global accounting firm after graduating from The University of Nottingham in 2002, specialising in forensic fraud investigations at both national and international levels. Rob now writes full time.


Originally from the North East of England, Rob has lived and worked in a number of fast paced cities, including New York, and is now settled in the West Midlands with his wife and young sons

Social Media links:



Twitter: @rsinclairauthor /


My Thoughts

The continuation of the James Ryker series is not anything like what I anticipated.  I was expecting a lot from this book and don’t get me wrong it delivered but I still thought something was missing about what I loved about his other books.

James Ryker is still a very fun character to read about and one of my favourites in some ways as he has so much growth in him and he can really push things to a new level.  This is why I really enjoy the series.

The author writes with conviction and everything that comes with this series shows that.  The fact that it has kept my attention is a testament to that especially when a lot of series fall far from the mark.

This is a great series and I can’t wait to see what else is happening with this character.  If you haven’t read this series you really should try it out as it does have some superb characterization.The Green Viper Blog Tour banner


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